u/jebatsuka

I recently bought an e39 with a blown headgasket, since then i have got the headgasket done, most pipes and everything changed but she still doesn’t like coolant. Recently I’ve had this issue where if I drive with the speed limiter on 90-100kmh then I see the temp rise above 90°C then when I take the limiter off and dont give it gas it comes back down to 90°C. I have changed the thermostat and the thermostats opening temp is 97°C. Also when doing a trip where I for example go up to 4000-5000rpm then theres a big amount of pressure in the coolant resovoir. Using the bleeding bolts then alot of air comes out as if there has to be something that lets air in or something.